Justification:
Listed as Critically Endangered because its extent of occurrence is less than 100 km², all individuals are in a single location, and there is continuing decline in the extent and quality of its habitat.

This species is endemic to Mexico, and is known only from the type locality and the Reserva Ecológica Huitepec in Chiapas (Carraway, 2007). It is known from 2,743 m asl at the type locality (Merriam, 1895).